Plow



F. RAMSEY.

PLOW.

Y APPLICATION FILED SEPT. 7, 1921.

1,40 ,031, Patented Feb. 28, 1922.

2 SHEETS-SHEET lwhirl/1 54 I i 9 z I 2 LL LL gwuento'o E. RAMSEY.

PLOW.

APPLICATION mmsm. 1.. 1 921.

1,408,031. Patgnted Feb.28, 1922.

2 SHEETS-SHEET 2.

UNITED STATES- PATENT OFFICE.

FRANK RAMSEY, or SHELBYVILLE, KENTUCKY.

rLow.

1,408,031 M Application filed September To all whom it may concern:

Be: it known that FRANK RAMSEY, a citi-' zen of the United States of America, residing at Shelbyville, in the county of Shelby and State of Kentucky, has invented certain new and useful Improvements in Plows, of which the following is a specification.

This invention relates to plows and has special reference to a mold-board for plows.

One important object of the invention is to provide an improved construction of mold-board which will be particularly adapted to pulverize and break up the earth being turned.

A second important object of the inven tion is to provide an improved form of moldboard especially adapted for use with sticky soils which tend to cake on the ordinary mold-board, the improved board being designd toprevent such caking.

A third important object of the invention is to provide an improved mold-board having serrated rollers arranged as part of said board in fan shape.

A fourth important objectof the invention is toprovi-de an improved journal and bearing arrangement for such rollers, the capsof the bearings being so constructed and. positioned that a single screw is all that is necessary to hold caps in position.

A fifth important object of the invention is to provide a mold-board having serrated rollers from part of its surface, the bearings for said rollers being so positioned on the mold-board that tapered rollers may be em ployed which are positioned not only in fan shape but also have their ends so supported that the general effect of said rollers is that of a warped surface.

lVith the above and other objects in view, the invention consists in general of certain novel details of construction and combinations of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and

Figure 1 is a side elevation of a moldboard constructed in accordance with this invention, adjacent parts of a plow being shown in dotted lines.

Figure 2 is a section on the line IIII of Figure 1.

Figure 3 is a side elevation of a form of Specification of Lettcrslate'nt. P t t Feb 7, 19211' Serial No. 499,008.

roller tapering arcuately from the ends to the center.

Figure 4c is a side elevation of the frustoconical rolleremployed herewith.

Figure 5 is an end view'of one of said rollers.

Figure 6 is aplan view of the mold-board in theposition in which it appears when on the plow.

Figure 7 is a detail showing part of the mold board from the rear, the view illustratlng one means of holding the rollers and also an arrangement of roller giving even slots between rollers.

Figure 8 is a rear view of a portion of a mold board showing a modified form of roller mounting.

Figure 9 is a section on the line IXIX.

Figure 10 is a section 011 the line X-X.

In carrying out the objects of this invention there is provided a mold-board 10 which is of the usual warped surface form and in the center of this mold-board is opening 11. The top and forward edge of this opening is provided with a series of serrations 12 while the bottom edge of said open ing is provided with serrations 13 which are smaller than theserrations 12 but are complementary thereto, each having one side 14 parallel to a corresponding side 14 of the opposite serration. Mounted between these pairs of parallel sides are rollers 15 serrated from end to end and preferably of general frusto conical form with their smaller ends toward the serrations 13. The back of the mold-board is provided with a series of grooves 16 leading from the parallel sides of the serrations and constituting bearing wherein are mounted the journals 17 of the rollers, said journals being secured in said bearings by means of caps 18 which are provided with parallel sides and which, when assembled in position, bear against each Other at these sides so that lateral movement of the caps is prevented except as a body and single screws 19 may be used to hold each cap on its bearing, these screws being suflicient to prevent all movement of the caps in connection with their mutually supporting construction. As noted before the mold-board is a warped surface and consequently the general surface of plane of the rollers, which projects slightly above the surface of the mold-board, is also warped. Furthermore by reason of the serrations 13 being smaller than the serrations 14: the rollers are arranged in fan shape and, where the frusto-conical form of roller is employed the adjacent edges of such rollers may be parallel so that the spaces between the rollers are of uniform width throughout their length.

. In the modified form of the device shown in Figures 8, 9, and 10 there is provided, leading from each of the bearings 16 a dovetailed slot 20 and each of the caps 18 has on its under-side a clove tail 21 fitting this slot. In addition these caps are slotted longitudinally as at 22 for the reception of the bolts or screws 19. With this construction the lateral support of the caps is obtained from the dove tail and the caps are put in position by sliding movement so that releasing the nuts 19 and sliding the caps back releases the roller.

Inoperation in an ordinary soil the earth, as it slides over the mold-board, contacts with the roller and the surface engaging these rollers is broken u this being greatly aided by the fan shape and warped ar-,

rangements of the rollers. Part of this earth will fall through the spaces between the rollers but most of it will be deposited on top of the freshly turned earth. In sticky soil the tendency of the soil to cake on the mold-board will be preventedby reason of free rotation of the rollers.

Having thus described the invention, what is claimed as new, is:

1. A mold board for plows consisting of a body having a central opening provided with complementarily serrated edges, the serrations of one edge being larger than the tween a respective pair of serrations wherebyto form a fan shaped structure, journals at the ends of said rollers, said body having semi-circular grooves in its back extending from the serrations and constituting bearings for said journals, bearing caps coverin said journals supported against lateraI movement, and a single bolt for each bearing cap.

2. A mold-board for plows consisting of a body having a central opening provided with complementarily serrated edges, the serrations of one edge being larger than the serrations of the other edge, each serration of the first edge having one face parallel to a face of the corresponding serration of the second edge, and rollers, each mounted between a respective pair of serrations whereby to form a fan shaped structure, journals at the ends of said rollers, said body having semi-circular grooves in its back extending frornthe serrations and-constituting bearings for said journals, bearing caps covering said journals, said mold-board having dovetailed slots extending from the journal bearings, a dove tail on each cap fitting a res ective slot, said caps having lqngitudinal s ots wvherethrough bolts may pass, and a single bolt for each cap passing through the longitudinal slot in said cap and engaging the mold-board.

In testimony whereof I afiix my signature.

FRANK RAMSEY. 

